6378RDS Paddle Holster for SIG 320CRX with RDS - ALS Retention

In this review of the 6378RDS paddle holster, the bottom line is simple: it is for concealed carriers who run a SIG 320CRX with a red dot and a weapon light and want a secure, durable Level 1 locking holster that still draws cleanly. The reviewer found the combination of the larger flex paddle, optional adjustable belt slide and the ALS locking system delivers reliable retention and consistent presentation, while the protective RDS cover preserves the optic when holstering and then rotates away automatically on the draw.

Key Features

• Red dot compatibility: Designed specifically for weapons fitted with a red dot optic, the holster keeps the sight covered and protected until the moment of draw.
• Integrated light fit: Built to accept common weapon lights such as the Surefire X300U, so the light remains securely mounted and aligned while holstered.
• ALS locking system: Level 1 retention provides a tactile passive lock that secures the pistol in place while allowing a smooth, natural draw when released.
• Protective RDS cover: The cover automatically rotates away when the weapon is drawn, protecting the optic in holster and clearing instant access on presentation.
• Mounting options: A larger flex paddle is standard and an optional fully adjustable belt slide for 1.5in-1.75in belts is included to suit different carry setups.

Who It's For

This holster is best for everyday concealed carriers and off-duty professionals who carry a SIG 320CRX equipped with a red dot and a tactical light and who prioritize a secure, retention-focused holster that still allows fast draws. Owners who value protection for optics and accessories will appreciate the rotating RDS cover and the solid construction.

Those who should look elsewhere include shooters with slide-mounted optics that are not compatible with this model or users who need very low-profile appendix carry solutions; this design favors paddle or belt-slide mounted concealment rather than specialized minimal carry rigs.

Pros & Cons

Pros

• Excellent retention and security thanks to the ALS locking system that keeps the pistol firmly seated.
• Protective RDS cover preserves the red dot optic and clears away reliably on draw.
• Flexible mounting with a larger paddle and included adjustable belt slide for 1.5in-1.75in belts fits a variety of carry setups.
• Durable build and protection suit pistols with lights such as the Surefire X300U and similar accessories.

Cons

• Bulker than minimalist holsters, so it may print more under tight clothing or be less suited for deep concealment.
• Designed specifically for red dot equipped models, so it is not a universal holster for non-RDS pistols.

Specifications

Our Verdict

The 6378RDS paddle holster is recommended for SIG 320CRX owners who carry a red dot and weapon light and need a dependable Level 1 retention holster that protects the optic. It balances security, durability and modular mounting options, making it a sensible value for carriers who prioritize retention and accessory compatibility over the smallest possible profile.

Frequently Asked Questions

Will this fit a SIG 320 without a red dot?
This model is cut for red dot equipped pistols and protects the optic, so a non-RDS slide may not seat or retain properly.

Does the holster accept weapon lights?
Yes, it is made to fit pistols with lights such as the Surefire X300U while maintaining alignment and protection.

What belt sizes does the included slide fit?
The adjustable belt slide accommodates belts from 1.5in to 1.75in for secure mounting.